ftp.ntua.gr:/debian/dists/Debian9.13/main/installer-amd64/20170615+deb9u9/images/?C=N&O=D 
Icon  Name                                                           Last modified      Size  
[DIR] Parent Directory                                                                    -   
[   ] udeb.list                                                      12-Jul-2020 20:49  6.5K  
[DIR] netboot/                                                       12-Jul-2020 20:49    -   
[DIR] hd-media/                                                      12-Jul-2020 20:49    -   
[DIR] cdrom/                                                         12-Jul-2020 20:49    -   
[   ] SHA256SUMS                                                     12-Jul-2020 20:49   72K  
[   ] MD5SUMS                                                        12-Jul-2020 20:49   54K  
[   ] MANIFEST.udebs                                                 12-Jul-2020 20:49   48K  
[   ] MANIFEST                                                       12-Jul-2020 20:49  1.7K
Apache/2.2 Server at ftp.ntua.gr Port 80